ENYO-3524: Fixe issues about the positioning of the QR code, the selection of the signing Key & PGP version

Link to the JIRA ticket: https://enyojs.atlassian.net/browse/ENYO-3524

Ready for review.

Tested on Chrome(Windows 7)
Enyo-DCO-1.1-Signed-off-by: Rafik Adiche mahmoud-rafik.adiche@hp.com